Improvement in welding iron and steel



UNITED STATES PATENT OFFICE.

JOSEPH POPPING, OF NEW YORK, N. Y., ASSIGNOR OF TWO-THIRDS HIS.-

RIGHT TO HERMANN SCHIERLOH, OF JERSEY CITY, NEW JERSEY, AND HENRYSOHIERLOH, OF NEW YORK, Y.

IMPROVEMENT IN WELDING IRON AND STEEL.

Spccification f01'ming part of Letters Patent N o. 142,939, datedSeptember 16, 1873; application filed. September 9, 1873.

To all whom it may concern:

Be it known that I, JOSEPH POPPING, of the city of New York, in thecounty of New York and State of New York, haveinvented an ImprovedProcess of Combining Pieces of Iron and Steel, and iron with iron, andsteel with steel, and malleable or other iron with cast-steel, and acompound to be used therein, of which the following is a specification:

The object of my invention is to combine iron and steel; and it consistsin, making a compound of borax and iron filings to be used for thepurpose, and in the process of applying the same.

In carrying out my invention take hard borax and melt it in an iron panover fire. When perfectly melted, let it get cold. Then crush it topowder. Then mix one part in weight of this powder with one part inweight of clear filings of iron. Then take the pieces to be combined,

warm one of them slightly, so that the mixture will stick to it then,both pieces being in ironclean condition, sprinkle the warm piece withthe mizitnre till it is fairly covered; then place the other piece onthis covering, and, while the two pieces are firmly held together, heatthem red hot and then hammer them well together.

My compound more firmly unites the two metals together and, in fact,unites them so that they form one solid body, which cannot again beseparated into its original parts; and this process, further, makes acombination which preserves, in'greater degree than could otherwise bedone, the original hardness and tenacity of the steel, because notheated to so high a degree, and at the same time a combi nation which,by the connection of the two pieces, strengthens them and prevents allpos-- sibility of break. I

By my process of combining iron and steel,

- I have only to use cherry-heat, and do away 1 entirely withwelding-heat, and therefore save not only a great deal of fuel and time,but

need not have the steel to undergothe-welding-heat, which very oftenspoils all of the durability and tenacity of the steel. Havingdescribedmyinvention,'whatIclai 1s- 1 I 1. The within-described welding compoundconsisting of calcined borax and; iron fil substantially as described.

2. The process herein describedjif uniting iron to steel-that is to say,first heating one .or more pieces of metal slightly, then applying thecompound, and then joining the two metals and subjecting. them to ared-hot heat,

and then hammering or rolling-them-well toh n i H .n

Dated September 11,1873. I I

- JOSEBH POPPING,

Witnesses: v i i I CHARLES H. Voonms, WILLIAM W. SANDERSON.

